Average temperature over 48 years |
°F |
51 |
28 |
30 |
37 |
48 |
57 |
66 |
73 |
71 |
64 |
53 |
44 |
33 |
Average high temperature over 48 years |
°F |
60 |
37 |
37 |
46 |
57 |
68 |
77 |
82 |
80 |
73 |
62 |
53 |
41 |
Average low temperature over 48 years |
°F |
42 |
19 |
21 |
28 |
39 |
48 |
57 |
64 |
62 |
53 |
43 |
35 |
24 |
Highest recorded temperature over 48 years |
°F |
104 |
69 |
71 |
80 |
98 |
93 |
96 |
102 |
104 |
100 |
87 |
80 |
69 |
Lowest recorded temperature over 48 years |
°F |
-13 |
-13 |
-7 |
1 |
14 |
28 |
41 |
48 |
39 |
32 |
19 |
6 |
-9 |
Average number of rainy days over 40 years |
days |
124 |
11 |
10 |
12 |
11 |
11 |
11 |
9 |
9 |
8 |
9 |
11 |
12 |
Average number of days above 90°F over 48 years |
days |
9 |
- |
- |
- |
- |
- |
2 |
4 |
2 |
1 |
- |
- |
- |
Average precipitation over 48 years |
in |
45.1 |
3.9 |
3.5 |
4.3 |
4.1 |
3.6 |
2.9 |
3.1 |
3.9 |
3.5 |
3.6 |
4.5 |
4.3 |
Average dew point over 48 years |
°F |
39 |
17 |
17 |
24 |
34 |
44 |
55 |
62 |
60 |
53 |
43 |
34 |
23 |
Most recorded rainfall over 48 years |
in |
67.5 |
11.7 |
7.2 |
8.8 |
12.7 |
10.6 |
11.1 |
8.1 |
11.1 |
7.9 |
11.9 |
11.0 |
10.8 |
Least recorded rainfall over 48 years |
in |
25.4 |
0.5 |
0.4 |
0.6 |
1.5 |
0.7 |
- |
0.3 |
0.7 |
0.8 |
0.4 |
0.8 |
0.6 |
Average number of days with thunderstorms over 48 years |
days |
21 |
- |
- |
1 |
1 |
3 |
4 |
4 |
4 |
2 |
1 |
1 |
- |
Average number of days with fog over 48 years |
days |
166 |
11 |
10 |
13 |
13 |
15 |
16 |
17 |
17 |
15 |
14 |
13 |
12 |
Average morning relative humidity over 48 years |
% |
76 |
71 |
71 |
71 |
70 |
73 |
76 |
78 |
81 |
83 |
81 |
78 |
74 |
Average evening relative humidity over 48 years |
% |
57 |
58 |
55 |
54 |
51 |
55 |
58 |
58 |
60 |
60 |
58 |
60 |
60 |
Average wind speed over 48 years |
mph |
11.0 |
12.0 |
12.0 |
12.0 |
12.0 |
10.0 |
9.0 |
10.0 |
9.0 |
10.0 |
10.0 |
11.0 |
12.0 |
Average number of days below 32°F over 48 years |
days |
117 |
27 |
24 |
20 |
5 |
- |
- |
- |
- |
- |
3 |
12 |
25 |
Average snowfall over 40 years |
in |
35.6 |
9.4 |
9.6 |
7.6 |
0.7 |
0.2 |
- |
- |
- |
- |
0.1 |
1.0 |
7.0 |
Average number of days above 65°F over 48 years |
days |
161 |
- |
- |
1 |
7 |
20 |
28 |
31 |
31 |
26 |
14 |
3 |
- |
Average number of clear days over 40 years |
days |
99 |
10 |
8 |
8 |
7 |
6 |
7 |
7 |
8 |
10 |
11 |
8 |
8 |
Heating degree days over 30 years |
days |
5884 |
1150 |
988 |
856 |
528 |
246 |
31 |
- |
8 |
90 |
359 |
630 |
998 |
Cooling degree days over 30 years |
days |
606 |
- |
- |
- |
- |
7 |
88 |
239 |
203 |
63 |
6 |
- |
- |
Average possibility of sunshine over 40 years |
% |
58 |
57 |
57 |
58 |
56 |
58 |
61 |
63 |
61 |
62 |
60 |
50 |
52 |
Average number of cloudy days over 40 years |
days |
164 |
14 |
13 |
15 |
15 |
15 |
13 |
12 |
12 |
12 |
12 |
15 |
15 |
Average number of partly cloudy days over 40 years |
days |
103 |
7 |
7 |
8 |
8 |
10 |
10 |
12 |
11 |
8 |
8 |
7 |
8 |
Average number of days below 5°F over 48 years |
days |
6 |
3 |
2 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
1 |